Study on Controlled Rectifiers with Optocoupler Integration: Evaluating Impact on DC Motor Voltage Stabilization and Rotational Speed Control

Abstract

This research explores a voltage regulation method for DC motor speed control using an optocoupler and a Silicon Controlled Rectifier (SCR). Traditional methods for controlling DC motor speed include varying frequency and adjusting input voltage, with voltage regulation being the most common approach. The SCR regulates the input voltage through its gate terminal, while the optocoupler provides the control signal. This study focuses on integrating optocouplers with SCRs to create an efficient controlled rectifier circuit for stable and reliable motor performance. The power circuit uses a 120V AC source to power a 190V DC motor, ensuring precise voltage stabilization and improved speed control. Through theoretical analysis and practical experimentation, the research examines the role of controlled rectifiers in motor control systems, aiming to address gaps in existing literature. The integration of optocouplers is expected to enhance system response time, stability, and motor performance. The findings offer potential improvements in DC motor control, with applications across various industrial settings where voltage regulation and speed control are essential. This study contributes a novel approach to motor control, offering valuable insights for enhancing motor stability and efficiency in engineering practices.